Improved apparatus for cleaning and buffing daguerreotype-plates



UNI-TED STATES PATENT OFFICE.

THOMAS LONGKING, OF BROOKLYN, NEW YORK.

IMPROVED APPARATUS FOR CLEANING AND BUFFING DAGUERREOTYPE-PLATES.

Specification forming part of Letters Patent No. 10,475, dated January 31, 1854.

To all whom it may concern.-

Be it known that I, THOMAS LONGKING, manufacturer of daguerreotype apparatus, of Brooklyn, in the county of Kings and State of New York, have invented and madel certain new -and useful Improvements in Apparatus for Cleaning or Scouring and Bufling Daguerreotyp e- Plates; and I do hereby declare that the followingis a full, clear, and eX- act description of the construction and operation of the same, reference being had to the annexed drawings, making part of this speciication, wherein- Figure 1 is a plan. Fig. 2 is a front elevation, and Fig. 3 is a section through the cleaning-pad.

The like marks of reference denote the sam parts in all the figures. f

The nature of my said invention consists in means for cleaning the plate previous to buffing. This has heretofore been done byhand, the operator using a piece of canton-flannel, on which he puts rotten-stone and oil orsimilar cleaning material and rubbing the daguerreotype-plate all over with the same; and for this purpose a plate-holder is used that can be turned around with one hand, while the plate is cleaned with the other. To accomplish the same object I use a rotary cushion, vover which a cover of canton-flannel or similar substance is put and secured by a ring, the daguerreotypeplate being applied to the rotating cushion While held ina proper plateholder, and in connection with this cleaningcushion I use a bufiing-Wheel to finish the polishing of the plate. I

a is a suitable frame, supporting a bed-plate b and carrying a treadle c on a fulcrum 1.

d isa pitm an, jointed at 2 to the treadle and passing through an opening in the bed b to a crank e on a horizontal shaft 3, supported in journals f, to the bed b.

g is a iiy-Wheel,and h is a buffing-Wheel, which may be either conical or cylindrical.

i is a miter-wheel on the end of the shaft 3.

k is a step or column receiving a vertical spindle 4., that sets at the bottom on a steel plate (see Fig. 3) and carries near the top a miter-Wheel Z, matching to the miter-wheel t".

Above the wheel Z is a block m, over which is a cushion stuied with proper material; but I prefer that sponge should be used for this purpose. Over this cushion I lay a piece of canton-flannel or similar material n and secure the same by sliding on a ring o, which arrangement gives the facility of changing the cleaning fabric when Worn out or dirty. By these means I am enabled to clean plates by placing on the cover n rotten-stone and oil or similar cleaning material and applying the daguerreotype-plate thereto, while the cushion is 'rotated by the foot applied to the treadle c, and When the bufng-wheel is in use the cleaning-cushion may be disconnected to avoid friction by raising the same and inserting a pin 5 through a hole made for that purpose through the shaft.

I do not claim the buffng-wheel nor any of the parts separately; but

What I desire to secure by Letters Patent 1s- 1. Fitting the revolving cushion m with the ring o, by which-the canton-flannel or similar' covering is secured to the cushion orremoved and a new cover substituted when required, as specified.

2. The arrangement of the gearing and shafts by means of which'the 'cleaning-cushion is combined with the bufting-wheel, in the manner substantially as set forth.

In testimony whereof I have hereunto set my signature this 5th day of October, 1853.

THOS. LONGKING.

Witnesses:

vPETER VAN ScHAAoK, LEMUEL W. SERRELL. 

